Improvement in cotton-presses



JOHN H. GROVS, OF GREENWOOD, MISSISSIPPI.

IMPROVEMENT IN l COTTON-PRESSES.

Specification forming part of Letters Patent No. 122,458, dated January2, i872.

' subsequently pointed out in the claim.

Figure l is a. sectional elevation of the improved press; and Fig. 2 isa side elevation.

, Similar letters of reference indicate corre spending parts. y

AV is the vertical frame of the press; B, the

' box or case; C, the follower; E and F, one of the pairs of arms; G andH, the other pair 5 I, the rollers con rolling, the arms as they aremoved forward and back; K and L, horizontal'bars on the upper part ofthe frame, one above another, forming the ways for the said rollers, Mis a windlass, and M and N, cords for working the said bars.' The barsof each pair are jointed to each other at P, and provided with a roller,Q', at the said joints. Each pair is jointed to the follower at R andtogether at S, where another wheel or roller, T, is mounted. Thewindlass is mounted on one pair of j the horizontal bars, say the upperones, L, and it may have a power-wheel on the other bars gearing with itfor-driving it 5 or the crank o v pulley may be placed on its axle.

The rope M is attached to the frame, say at 4 U, passes over the pulleyQ at the right hand, thence to and around roller Q at the left, thenceback over the one at the right, thence over the one at the left again,and thence to the windlass, as shown, being passed around and fastenedto it, so that by turningl said windlass to the right the rope will bewound on and joints P brought toward each other, by which the followerwill be forced down with greatpower. For withdrawing the follower thewindlass is turned back to the left to unwind rope M, and the rope Nconnected to the follower is pulled .down over pulley T, which moves thejoints P back and raises the follower very quickly. The follower is alsoforced down quickly, and the effect of the power on the cotton increasesas the resistan cein creases by reason ofthe shifting-of the leverage infavor of the power due to this arrangement of togglejointed arms.

Having, thus described my invention, I

claim as new and desire 'to secure by Letters Patent- The arrangement ofthe levers E G,pivoted to the follower C, and the levers F H, providedwith the pulleys Q QT between the knucklejoints and the wilnllassmechanism MVM N, all constructed substantially as and for the purposesset forth.

JOHN H. GROVES.

Witnesses A. J. Looms, YEDwD. HOMER.

